Re:Closures and Objects Are Equivalent
by Rusky on Sunday April 12, 2015 @05:13PM
(#9364749)
Pass an object to DoSomething and you get the same thing as the closure.
[ Parent
| on HN ]
Java's Runnable interface was an example of this in practice. Rather than passing a function, you passed an object whose primary purpose was to carry around a function that would be called.
DoSomething(func() { ... })
becomes DoSomething(new Runnable() {
public void run() { ... }
});
or the longer form class MyAction implements Runnable {
public void run() { ... }
}
DoSomething(new MyAction());